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What's a contest without a prize? Aunt Molly has entered a joke-telling contest at a local comedy club, and Cam; her best friend, Eric; and Mr. Jansen are in the audience to watch her perform. The prizes are exciting, but the competition is stiff - there's a prop comic, a knock-knock joker, and more! As the show starts, Cam notices that one of the prizes, an engraved silver plate, has disappeared. Suddenly, everyone in the club becomes a suspect.

Cam and her friend Eric are selling chocolate fudge and rice cakes door-to-door for charity. Eric can’t remember what to tell the customers. But Cam has no trouble. She simply looks at the speech and says "click". Then she stores a picture of it in her mind. When Cam sees a woman coming from a yellow house, she knows something is wrong. The woman is wearing a rain coat, but it isn’t raining. She’s wearing dark glasses, but the sun isn’t shining. And the yellow house looks deserted. Will Cam be able to solve the mystery with her amazing photographic memory?

An unknown thief steals an important naval treaty from the office of a government clerk. Who stole it and how did they do it? Will the treaty ever be recovered? This sounds like a case for England's most brilliant sleuth!

When the Countess of Morcar's priceless blue jewel is stolen, a former thief is charged with the crime, but is he really guilty? Never fear: Sherlock Holmes is on the case, and the truth will out!

Captain Arthur Morstan has vanished. Where is he, and does his disappearance have anything to do with the six pearls sent to his daughter Mary? Our crime-fighting sleuth decides to investigate.

The whole of London is shocked and baffled by the murder of Ronald Adair. It seems like an impossible crime! Can our sensational sleuth solve the mystery of how Adair was killed before the murderer strikes again?

Katie is looking forward to the peanut butter and jelly sandwich she has for lunch. But after recess, she discovers her sandwich is missing! As she searches for her sandwich, she wonders if one of her classmates is to blame. How will she solve the mystery of her missing sandwich?

The King of Bohemia wishes to marry...but before he can do so, he needs Sherlock's help! Can the sleuth retrieve an embarrassing photograph of the royal, before a scandal erupts and the king is forced to cancel his wedding plans?

There’s a zombie on the loose! When Dink, Josh, and Ruth Rose visit the Louisiana bayous, they meet a village with one spooky problem. Locals say a silver-haired zombie is digging up graves in the cemetery. Are the stories real? Dink, Josh, and Ruth Rose will unearth the truth!

Dink, Josh, and Ruth Rose are visiting Dink's Uncle Warren in New York City when several paintings are stolen from his apartment building. Do the kids have enough clues to catch this crafty - and hungry - crook?

Meet Tyrone the Tyrannosaurus, Green Lawn’s newest–and biggest!–visitor. The kids’ old friend Jud Wheat is in town raising funds for a dinosaur museum. But after the show in Green Lawn, all Jud’s money disappears! Can Dink, Josh, and Ruth Rose track down the cash?

Everyone in Green Lawn is quaking about the ducks that keep crossing River Road. But just when the town raises enough cash to build a special duck bridge, the money is stolen! Dink, Josh, and Ruth Rose are on a quest to find the culprit.

Dink's favorite mystery writer, Wallis Wallace, has invited Dink, Josh, and Ruth Rose for a sleepover - in a haunted castle! But as soon as the young detectives arrive, they start hearing screams behind the walls. Will they discover who - or what - is haunting Moose Manor?

Rosamond is visiting Scandinavia when she loses something. She wants Nate the Great to find it, even though he doesn't know what she lost, what country she lost it in, or when she lost it. And he's thousands of miles away. But if Nate doesn't take the case, Rosamond plans to hire the King of Sweden. Nate doesn't want Rosamond to bother the poor king. And he does want the chance to solve his first-ever international case. Can Nate find whatever Rosamond lost without leaving his neighborhood?

Spread some Christmas cheer with Nate the Great in this holiday adventure! Young listeners are introduced to the detective mystery genre, perfect for the Common Core. Kids can problem-solve with Nate, using logical thinking to solve mysteries! Annie's dog is unhappy. When Fang is unhappy, everyone is unhappy. Especially Nate the Great. So Nate agrees to sniff out Fang's mysteriously missing Christmas mail. It's cold and snowy. But Nate the Great and his dog, Sludge, will try to solve this holiday case in time for Fang to have a crunchy, munchy Christmas.

Thirteen-year-old Theodore Boone knows every judge, police officer, and court clerk in Strattenburg. He has even helped bring a fugitive to justice. But even a future star lawyer like Theo has to deal with statewide standardized testing. When an anonymous tip leads the school board to investigate a suspicious increase in scores at another local middle school, Theo finds himself thrust in the middle of a cheating scandal. With insider knowledge and his future on the line, Theo must follow his keen instincts to do what’s right in the newest case for clever kid lawyer Theo Boone.

During a spy school game of Capture the Flag, 12-year-old Ben Ripley somehow accidentally shoots a live mortar into the principal's office - and immediately gets himself expelled. Not long after going back to the boring old real world, Ben gets recruited by evil crime organization SPYDER.

The sun is shining, the birds are singing, and someone is eating the flowers in Nate the Great's garden. A green tortoise is slowly, slowly stepping across the lawn, and Nate is slowly, slowly following him. Where does Nate's green guest truly belong? It may take all of Nate the Great's patience and sharp eyesight to find out slowly.

A coach driver has been murdered...and it looks like the killer is going to get away with their terrible crime. The only clue is a torn piece of paper in the victim's hand, with a few words written on it. With the help of this single tiny clue, can our legendary sleuth unravel the mystery?

A Civil War sword, a watermelon stabbing, missing roller skates, a trapeze artist's inheritance and an eyewitness who's legally blind! Encyclopedia Brown must solve cases by using his famous computer-like brain. Try to crack the cases along with him!